PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/12-19:43:00
G03     221.5          64.7               10.8 +/-    1.01      11.8 +/-    1.01  0.130 / 0.290
G09     305.5          20.3               10.7 +/-    2.44      23.3 +/-    2.44  0.120 / 0.420
G14     102.8          12.8               11.3 +/-    2.67      29.7 +/-    2.67  0.040 / 0.060
G16     120.1          61.9               12.7 +/-    0.63      14.1 +/-    0.63  0.040 / 0.070
G22     191.0          50.3               11.5 +/-    1.51      14.4 +/-    1.51  0.040 / 0.050
G23     323.7          53.5               10.8 +/-    0.78      13.1 +/-    0.78  0.040 / 0.040
G26     62.8           49.2                8.9 +/-    0.67      11.3 +/-    0.67  0.170 / 0.530
G31     54.6           16.1                7.7 +/-    0.99      18.7 +/-    0.99  0.120 / 0.650